My GSDs have dug cooling holes, holes to get at small critters, eaten my veggies until I fenced garden off, and peed on the same spots in lawn until they died. I tried to counteract brown spots with recommended lime treatment (base to balance acid), with very limited success. Filling in holes just seems to invite re-digging to find out where the hole went!
Lex, Levi, Lydia, and Lorenz 4ever! Jamin now.